DE69210816D1 - Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner Phosphorsäure - Google Patents
Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner PhosphorsäureInfo
- Publication number
- DE69210816D1 DE69210816D1 DE69210816T DE69210816T DE69210816D1 DE 69210816 D1 DE69210816 D1 DE 69210816D1 DE 69210816 T DE69210816 T DE 69210816T DE 69210816 T DE69210816 T DE 69210816T DE 69210816 D1 DE69210816 D1 DE 69210816D1
- Authority
- DE
- Germany
- Prior art keywords
- organic stream
- phosphoric acid
- pure phosphoric
- produce pure
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
- C01B25/465—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound the extracting agent being an ester or a mixture of esters
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/46—Preparation involving solvent-solvent extraction
- C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92500099A EP0580915B1 (de) | 1992-07-31 | 1992-07-31 | Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner Phosphorsäure |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69210816D1 true DE69210816D1 (de) | 1996-06-20 |
DE69210816T2 DE69210816T2 (de) | 1997-01-02 |
Family
ID=8211825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69210816T Expired - Fee Related DE69210816T2 (de) | 1992-07-31 | 1992-07-31 | Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner Phosphorsäure |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0580915B1 (de) |
AT (1) | ATE138046T1 (de) |
DE (1) | DE69210816T2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110540179A (zh) * | 2019-09-03 | 2019-12-06 | 贵州开磷集团矿肥有限责任公司 | 一种湿法磷酸及其衍生产品的有害元素脱除方法及设备 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1531487A (fr) * | 1967-05-11 | 1968-07-05 | Pechiney Saint Gobain | Procédé continu perfectionné de purification de l'acide phosphorique par les solvants |
FR2132203B1 (de) * | 1971-03-29 | 1977-07-22 | Uss Eng & Consult | |
US4108963A (en) * | 1974-06-25 | 1978-08-22 | Produits Chimiques Ugine Kuhlmann | Process for purifying phosphoric acid |
US4311681A (en) * | 1980-05-19 | 1982-01-19 | Fmc Corporation | Method of regenerating phosphoric acid extraction solvent |
-
1992
- 1992-07-31 AT AT92500099T patent/ATE138046T1/de not_active IP Right Cessation
- 1992-07-31 EP EP92500099A patent/EP0580915B1/de not_active Expired - Lifetime
- 1992-07-31 DE DE69210816T patent/DE69210816T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0580915B1 (de) | 1996-05-15 |
EP0580915A1 (de) | 1994-02-02 |
DE69210816T2 (de) | 1997-01-02 |
ATE138046T1 (de) | 1996-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE102238T1 (de) | Verfahren zur herstellung von gelatine aus fischhaut. | |
AU643101B2 (en) | Process for removing hydrogen cyanide and ammonia from aqueous solutions | |
DE69330288D1 (de) | Verfahren zur entfernung von chlorophyllfarbeverunreinigungen aus planzenoelen | |
DE68901299D1 (de) | Verfahren zur herstellung von eisen(iii)chlorid mit verduennter salzsaeure. | |
ATE104925T1 (de) | Verfahren zum reinigen von flusssaeure. | |
BR9907840A (pt) | Soluções contendo polìmeros | |
ATE79266T1 (de) | Verfahren zur herstellung vom antihaemophilfaktor (ahf) durch kaeltefaellung und zur verbesserung der loeslichkeit des hergestellten ahf-produktes. | |
ATE24475T1 (de) | Verfahren zur reinigung eines gemisches von wasser mit c1-c2-alkoholen das von der industriellen herstellung von ethanol stammt, mit hilfe eines extraktionsmittels. | |
DE69210816D1 (de) | Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner Phosphorsäure | |
DE3764063D1 (de) | Verfahren zur herstellung von trifluoromethyliodid. | |
SE8503139D0 (sv) | Extraktionsforfarande | |
DE69008306D1 (de) | Verfahren zur Reinigung von Wasserstofffluorid. | |
DE3866257D1 (de) | Verfahren zur herstellung von polycarbonatloesungen. | |
KR850001147A (ko) | (±) 2-(6'-메톡시-2'-나프틸)-프로피온산의 광학적 분해방법 | |
JPS54102056A (en) | Process for high-speed treatment of waste water | |
MA19975A1 (fr) | Procede de purification de l'acide phosphorique prepare par voie humide | |
ATE287378T1 (de) | Verfahren zur herstellung von natriumbikarbonat mit nahrungsmittelqualität | |
ATE21882T1 (de) | Verfahren zur herstellung von phosphorsaeure und gips in marktgaengiger form aus phosphatgestein. | |
ATE1831T1 (de) | Verfahren zur behandlung von bleichloridl\sungen. | |
JPS5581782A (en) | Treatment method for flue gas desulfurization waste water | |
DE69519656D1 (de) | Verfahren zur Gewinnung von procyanidolischen Oligomeren | |
ATE72675T1 (de) | Verfahren und vorrichtung zum auswaschen von verunreinigungen aus rohgasen. | |
SU1549915A1 (ru) | Способ очистки экстракционной фосфорной кислоты от фтора | |
JPS534355A (en) | Process for removing floc | |
ATE126178T1 (de) | Verfahren zur aufarbeitung von abfallschwefelsäure. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |